Lobenzo d



(No Model.)

L. D. PARRA.

MECHANICAL MOVEMENT.

No. 321,199. Patented June 30, 1885.

I'ij.1.

WITNESSES:

Ja. aqw

. i I m m N. PETERS, PhDhrLilhugnphar. Walhington. D. C.

INVENTOR:

NiTED STATES ATENT Fries.

LORENZO D. FARRA, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF I ONE-HALF TO HORACE F. MOOANN, OF SAME PLACE.

MECHANICAL MOVEMENT.

SPECEFICATION forming part of Letters Patent No. 321,199, dated June 30, 1885.

Application filed January 6, 1885.

To all whom it may concern.-

Be it known that I, LORENZO D. FARRA, a citizen of the United States, residing in the city and county ofPhiladelphia, State of Pennsylvania, have invented a new and useful Improvement in Mechanical Movements, which improvement is fully set forth in the following specification and accompanying drawings, in which Figure 1 represents an end elevation of a mechanical movement embodying my invention. Fig. 2 represents a top or plan view thereof. Fig. 3 represents a vertical section in line 00 m, 2. Fig. 4 represents a vertical section thereof in line 3 y, Fig. 2.

Similar letters of reference indicate corre sponding parts in the several figures.

Myinvention consists of a mechanical movement applicable to machines, presses, &c., where a dwell is required for feeding and other purposes.

Referring to the drawings, A represents a housing or frame on which is mounted the driving-shaft B, the latter having attached to it a pulley,O, and a pinion, D. Meshing with the pinion D is a mutilated pinion, E,which is secured to a shaft, F, the latter being also mounted on the housing or frameA. To one side of the pinion D is fixed a cam, G,which is so disposed that when required it may act on an armor finger, H, which is movably connected with the pinion E. Encircling the shaft F is a clutch or sleeve, J, to which said finger H is attached, and projecting from the side of the pinion E are lugs K, forming guides between which the finger H is fitted and plays, the finger thus being adapted to rotate with said pinion E.

L represents a shipper or lever which is employed for moving the finger H in opposite directions, for the purpose of throwing it in and out of gear with the cam G.

Secured to the pinion D on the side opposite to the cam G is a wiper, M, so located that it acts upon aspring arm or bar, N,which is connected with the housing or frame A, and provided with a recess or opening, a, to receive a pin or stud, P, projecting from the side of the mutilated pinion E opposite to the finger H. Power is applied to the shaft B, whereby the (No model.)

pinion D is rotated, and the lever G is properly shifted so as to force the finger H toward the pinion E, it being noticed that the cam G is in advance of said finger H. The pinion E receives rotation from the pinion D until the teeth of the latter reach the mutilated or untoothed portion of the former, when said pinion E, and consequently the shaft F, becomes stationary, and thus a dwell is imparted to the machinery with which the shaftF is connected or in communication, thus allowing time for feeding and other purposes. During the dwell the spring-arm engages with the stud P, thus tightly holding the pinion E. The pin- .ion D continues its rotation, making the second turn, and as the finger H is now in the path of rotation of the cam G, it is struck by thelatter. Simultaneously therewith, or just in advance of the same, the wiper M enters between the arm Nand the wheel E,and forces said arm from the stud P, and thus as the'finger is pressed by the cam G the pinion E is rotated, and the teeth of the pinion D again mesh with those of the pinion E, the latter thus being fully rotated until the teeth of the pinion D reach the mutilated portion of the pinion E, when another dwell is occasioned, as hereinbefore stated.

The lever or shipper L may be connected with other parts of a machine in order to be automatically operated, or the finger H may be a fixture of the pinion E, so that said pinion may be automatically stopped and started as long as the machine is running.

The pinions may be changed in their relative sizes in order to be adapted for the machines to which they are applied, observing the rule that'when the mutilated or driven pinion is to revolve revolution for revolution with the other pinion or driver andstop one revolution, it should be as much larger as will leave as many teeth as the driver after it has been cutaway to clear, said rule being applicable in any multiple or division of relative sizes.

The mechanical movement may be applied to printing, punching, shearing, or stamping presses, and other machines where a given time is required for feeding or other purposes, and by the use thereof the reciprocating or other movements of a machine may be shortened, released by the action of said wiper, for the thus giving more leverage or power. purpose set forth.

Having thus described my invention, what I 3. Pinions, substantially as described, in Is claim as new, and desire to secure by Letters combination with a clutch, guides secured to 5 Patent, is I one of the pinions, a finger connected with said 1. A pinion and a mutilated pinion proclutch, and acam on the other pinion, said finvided, respectively, with a cam and a finger, ger being movable in theguides and rotatable substantially as and for the purpose set forth. therewith, as stated.

2. Pinions, substantially as described, in LORENZO D. FARRA. 1o combination with a stud on one of the pinions, WVitnesses:

awiper on the other pinion,and a spring-arm, JOHN A. WIEDERSHEIM,

said arm engaging with said stud, and being A. P. GRANT. 

